I'm greatly surprised when testing an Asterisk box with 802.11g. Here's the
topology:
VoIP caller --- 802.11g --- Asterisk --- 802.11g --- VoIP extension
|
FXO ___ PSTN extension
When I call a VoIP extension on that box (from a VoIP extension), voice is
good. But when this box tries to bridge the call with a PSTN extension,
voice is completely broken. And it's not because of the cheap X100P - when
I ping the box, round trip is >4,000 ms, most of the time causing timeout.
Once the call hangs up, ping time dropped to 1-2 ms. Ping time started to
surge even when FXO is simply ringing.
If VoIP to VoIP extension call uses re-invite (which it did), voice is also
good in the Console channel.
How can voice traffic stall 802.11g? (I haven't checked, but CODEC is likely
ulaw.)
Yuan Liu
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